Home / 3,571.80-5,355.68-1,621.59

Finding the Fourth Proportional to 3,571.80, 5,355.68 and 1,621.59

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Solution

The fourth proportional to 3,571.80, 5,355.68 and 1,621.59 is: 2,431.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,571.80 : 5,355.68 = 1,621.59 : x
  2. Step 2: Convert to fraction form
    3,571.80/5,355.68 = 1,621.59/x
  3. Step 3: Cross multiply
    3,571.80x = 5,355.68 × 1,621.59
  4. Step 4: Simplify right side
    3,571.80x = 8,684,709.02
  5. Step 5: Solve for x
    x = 8,684,709.02/3,571.80
  6. Step 6: Final answer
    x = 2,431.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.